| Abbreviation | Definition |
|---|---|
| GEMS | Glenayre Technologies, Inc. |
| GENBA | Genesee Corporation Class A (delisted) |
| GENBB | Genesee Corporation Class B (delisted) |
| GENC | Gencor Industries, Inc. |
| GENE | Genome Therapeutics Corporation |
| GENI | GenesisIntermedia.Com |
| GENXY | Genset |
| GENZ | Genzyme Corporation, General Division |
| GEOI | Georesources, Inc. |
| GEOK | Geokinetics, Inc. |
| GEOLQ | Geotele.Com, Inc. (in bankruptcy) |
| GERC | Geraco, Inc. |
| GERN | Geron Corporation |
| GETT | Global E- Tutor, Inc. |
| GETY | Getty Images, Inc. |
| GF | Gloomy Friday |
| GFACX | American Funds Growth Fund of America Class C |
| GFBRF | Grupo Financiero Inbursa |
| GFED | Guaranty Federal Bancshares |
| GFIHQ | Graham Field Health Products (in bankruptcy) |